Reddit reviews Fluorescent Yellow Baseball/Softball Catcher Fingernail Game Sign Stickers (100 Stickers/pack)
We found 1 Reddit comments about Fluorescent Yellow Baseball/Softball Catcher Fingernail Game Sign Stickers (100 Stickers/pack). Here are the top ones, ranked by their Reddit score.
Baseball/Softball Catcher Finger Nail Bright Colored Game Sign Stickers.Allows Pitchers to See Catcher Signals More Clearly.Used by Catchers from Little League, Pony, Travel Ball to Babe Ruth, High School, College & Pros.3 Colors (Fluorescent Orange, Fluorescent Yellow, Bright Wight)100 Stickers/Package
They make stickers for it.
Edit: Also, Peavy has terrible vision. I remember the Red Sox catchers used to wear them when he pitched.